Will they corode or just shine up,like they were new again???...tom science
2006-08-25 20:45:11 · 7 answers · asked by tom science 4 in Science & Mathematics ➔ Earth Sciences & Geology
Pennies get dull over time because the copper in the pennies slowly reacts with air to form copper oxide. Pure copper metal is bright and shiny, but the oxide is dull and greenish. When you place the pennies in the salt and vinegar solution, the acetic acid from the vinegar dissolves the copper oxide, leaving behind shiny clean pennies. The copper from the copper oxide stays in the liquid. You could use other acids instead of vinegar, like lemon juice.
2006-08-25 20:58:00 · answer #1 · answered by good day :) 2 · 0⤊ 0⤋
the vinegar eats at the dirt and stuff in the penny i think so it makes em shiner?
2006-08-26 03:50:21 · answer #2 · answered by fluxsnokin 2 · 0⤊ 0⤋
Try it and see for yourself
2006-08-26 03:51:32 · answer #3 · answered by norsmen 5 · 0⤊ 0⤋
i think you'll just have wet, smelly pennies. rubbing alchohol is a different story.
2006-08-26 03:49:14 · answer #4 · answered by emailjaredc 2 · 0⤊ 0⤋
tell you in a few weeks or so :)
2006-08-26 03:50:36 · answer #5 · answered by metallhd62 4 · 0⤊ 0⤋
They get super clean! If you add baking soda too...even better!
2006-08-26 03:50:35 · answer #6 · answered by sarahbeth 4 · 0⤊ 0⤋
Try it. Tell us.
2006-08-26 03:50:38 · answer #7 · answered by MaqAtak 4 · 0⤊ 0⤋